43321331243219 has 2 divisors, whose sum is σ = 43321331243220. Its totient is φ = 43321331243218.

The previous prime is 43321331243087. The next prime is 43321331243221. The reversal of 43321331243219 is 91234213312334.

43321331243219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43321331243219 - 2⁸ = 43321331242963 is a prime.

It is a super-2 number, since 2×43321331243219² (a number of 28 digits) contains 22 as substring.

Together with 43321331243221, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43321331143219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21660665621609 + 21660665621610.

It is an arithmetic number, because the mean of its divisors is an integer number (21660665621610).

Almost surely, 2^{43321331243219} is an apocalyptic number.

43321331243219 is a deficient number, since it is larger than the sum of its proper divisors (1).

43321331243219 is an equidigital number, since it uses as much as digits as its factorization.

43321331243219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 41.

The spelling of 43321331243219 in words is "forty-three trillion, three hundred twenty-one billion, three hundred thirty-one million, two hundred forty-three thousand, two hundred nineteen".